A Dhaka court has placed Jubo League leader Golam Kibria Shamim on a 10-day remand.
Seven of his bodyguards also detained have also been placed on separate 4-days remands.
Dhaka Metropolitan Magistrate Mahmuda Akhtar passed the order after three cases were filed against Shamim, and two against his bodyguards, on Saturday.
RAB officials handed over Shamim and the bodyguards, who were also detained with firearms on Friday, to Gulshan police around 3pm the same day.
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Gulshan police station Officer-in-Charge (OC) Md Kamruzzaman said: "We have filed three separate cases against GK Shamim, and two against his men over narcotics, firearms, and money laundering charges."
Shamim is the managing director and chairman of the GKB & Company (Pvt) Limited.
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RAB raided that office in Gulshan's Niketon area on Friday, and seized Tk1.80 crore in cash, Tk165.27 crore worth of fixed deposit receipts (FDR), alcohol and firearms.
Known as an influential contractor in Sabujbagh, Basabo, and Motijheel areas, Shamim made headlines for his power in securing Public Works Department contracts.
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According to several Jatiyatabadi Juba Dal members, Shamim was an active member of the organization — the youth wing of BNP.
He later joined Jubo League, and has been identifying himself as its central cooperative affairs secretary.